CN114360256A - Embedded radar monitoring combination instrument and traffic flow radar information system - Google Patents
Embedded radar monitoring combination instrument and traffic flow radar information system Download PDFInfo
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Abstract
The invention discloses an embedded radar monitoring combination instrument, which comprises a camera and a radar detector, wherein the camera is activated to capture after the radar detector detects a vehicle, the adjacent radars can realize the bidirectional mutual transmission of the same target vehicle information, the transmitted information comprises the vehicle dynamic information, the characteristic information and the unique ID number identity information in the whole radar sensing system, the radar system can realize the bidirectional transmission of any target vehicle information in a detection area between the adjacent radars, the continuous transmission length of a plurality of radars is not less than the queuing length, and the integral transmission success rate of the vehicle information in one end surface, two cross surfaces, three cross surfaces, four cross surfaces, five cross surfaces and a plurality of cross surfaces is not less than 99.9 percent. The intelligent radar control box can perform centralized control management on related peripheral equipment such as radars, network cameras and the like through intelligent control system hardware in the box, is convenient for a user to install, debug, configure and use the intelligent radar control box on site, provides certain subsequent function upgrading, continuously integrates other related hardware and the like, and achieves intelligentization and networking of a radar-based traffic information detection function.
Description
Technical Field
The invention relates to the field of road monitoring, in particular to an embedded radar monitoring combination instrument and a traffic flow radar information system.
Background
With the rapid development of economy, the automobile holding capacity is rapidly increased, various phenomena such as traffic jam, violation and the like are brought, and at present, road monitoring mainly comprises road traffic condition television monitoring, motor vehicle violation grabbing and fearing and traffic flow information acquisition.
The road condition monitoring usually adopts the mode that monitoring points are distributed at urban road intersections and key road sections with concentrated traffic flow and pedestrian flow, road traffic conditions are uploaded to a road monitoring command center in real time through an image or video transmission channel, and central operators on duty can timely know the road conditions of all areas according to the road conditions so as to adjust the traffic flow of all intersections and ensure smooth traffic. The road information can be monitored in real time, and road traffic accidents and the like can be timely found and arranged to be processed for monitoring the violation conditions of vehicles on the road. The video monitoring image can be stored in a video recording server of a traffic command center to be used as a basis for processing traffic accidents, illegal behaviors and even various emergency situations. However, it is necessary to have an attendant to observe the transmitted image or video all the time, and various difficulties may arise in manually distinguishing which vehicles violate the regulations and which violations belong to.
The traffic violation snapshot is mainly performed by taking digital cameras and high-definition cameras as a main part, automatic photographing, video recording and other operations are performed on the violation conditions, vehicle analysis is performed in a background, license plate information is compared with information of a vehicle management station, and therefore comprehensive information of vehicles, such as vehicle owners, vehicle types, colors and the like, is called out. However, when the visibility is low, such as under the conditions of heavy fog, heavy rain and snow, and dark night, the vehicle cannot be found by the snapshot system; in addition, when a plurality of vehicles pass through, the conventional snapshot system cannot distinguish the vehicles one by one, only can the plurality of vehicles be simultaneously photographed, and a large number of photos are taken to compare and analyze which vehicles violate the regulations and which violations belong to which behaviors.
The basis of traffic information collection system is the collection of traffic information data, and traffic information collection's mode rapid development in recent years has developed on the basis of modes such as traditional microwave radar, video, infrared and ring induction coil, new modes such as floating car traffic information collection, unmanned aerial vehicle traffic information collection have appeared in the development, come to realize traffic information's real-time collection and differentiation, if: traffic flow, road occupancy, driving speed, etc. But the system cannot conveniently identify the violation vehicle.
Disclosure of Invention
The invention provides an embedded radar monitoring combination instrument and a traffic flow radar information system, which can overcome the defects of poor snapshot effect, low visualization degree and the like in the prior art.
The invention adopts the following technical scheme:
the utility model provides an embedded compound appearance of radar monitoring, including the camera, the radar detection instrument, wherein, the radar detection instrument activates the camera and takes a candid photograph after detecting the vehicle, can realize the two-way mutual transmission to same target vehicle information between adjacent radar, the information of transmission includes vehicle dynamic information, unique ID serial number identity information among characteristic information and the whole radar perception system, the radar system can realize two-way transmission between adjacent radar to arbitrary target vehicle information in the detection zone, the continuous transmission length of a plurality of radars is no less than 3 kilometers, vehicle information whole transmission success rate is greater than or equal to 99.9% in 3 kilometers district section.
The radar detection instrument is equipped with 1 CAN mouth, 32 pulse signal mouths, 4 RJ45 interfaces, 2 RS485 mouths, 2 RS232 mouths.
The target vehicle information comprises information such as real-time speed, longitude and latitude, lane information, vehicle type classification, motion direction, acceleration, unique-ID number and the like.
The target vehicle characteristic information includes: one or more of information such as license plate, color, vehicle type, vehicle series, brand and the like.
The attribute categories include: supporting lane changing, reverse running, line pressing, non-maintaining of safe vehicle distance, plugging and illegal parking regulation; the functions of monitoring congestion, pedestrians, roadblocks, construction, object throwing, non-deceleration of zebra crossings, average speed, continuous lane changing, snake-shaped lane changing and road occupation of a cart are supported; and the high-temperature early warning function of the vehicle is supported.
Further comprising a memory, said memory storing information including: radar number, lane number, time zone number, multiplying factor, headway, average speed, long average speed, medium average speed, short average speed, medium average speed, long average speed, ultra-long average speed, traffic flow per unit time, long traffic flow per unit time, medium traffic flow per unit time, short traffic flow per unit time, total occupancy, long occupancy, medium occupancy, short occupancy.
The lane information comprises one or more of a road junction number, a lane angle and a lane starting position.
The vehicle dynamic information comprises vehicle speed, flow, vehicle occupancy information, lane and line pressing detection and vehicle head distance information, and the vehicle speed information comprises: the independent speed of each vehicle; average vehicle speed; a total average velocity; average speed of each vehicle type; the traffic information includes: the traffic flow per unit time; total flow rate; the unit time flow of each vehicle type; the vehicle occupancy information includes: the total occupancy rate; and the occupancy rate of each vehicle type.
The invention has the advantages that: the service efficiency of the traffic information management system based on radar detection and the visualization degree of traffic flow information monitoring are improved, and monitoring and management are facilitated.
Drawings
Fig. 1 is a schematic flow chart of a radar monitoring snapshot method of the invention.
Fig. 2 is a schematic structural diagram of the radar monitoring snapshot system of the invention.
Fig. 3 is a schematic diagram of a first application of the radar monitoring snapshot system of the invention.
Fig. 4 is a schematic diagram of a second application of the radar monitoring snapshot system of the present invention.
Fig. 5 is a schematic diagram of a third application of the radar monitoring snapshot system of the present invention.
Fig. 6 is a schematic diagram of a fourth application of the radar monitoring snapshot system of the present invention.
Fig. 7 is a schematic diagram of a fifth application of the radar monitoring snapshot system of the present invention.
Fig. 8 is a schematic diagram of a sixth application of the radar monitoring snapshot system of the present invention.
FIG. 9 is a diagram illustrating a seventh application of the radar monitoring snapshot system of the present invention
Fig. 10 is a schematic structural diagram of a traffic radar information system according to the present invention.
Fig. 11 is a schematic structural diagram of the embedded radar monitoring composite instrument of the present invention.
Fig. 12 is a schematic view of the front-end appearance structure of the embedded radar monitoring composite instrument of the present invention.
Fig. 13 is a schematic diagram of the rear-end appearance structure of the embedded radar monitoring combination instrument.
Detailed Description
As shown in fig. 1, the invention discloses a radar speed measurement monitoring method, which comprises the following steps:
s100: the radar speed measurement component transmits high-frequency radar waves to form transmitted waves, and the high-frequency radar waves generate reflected waves after contacting a moving object;
s200: the radar speed measurement component receives the reflected high-frequency radar waves, and the frequency of the reflected waves is proportional to the frequency difference of the transmitted waves and the speed of the moving object;
s300: the reflected wave is processed and the calculated result is displayed the speed of the moving object through a display panel;
s400: when the radar speed measurement component detects that a vehicle passes through, the shooting component is driven to shoot;
s500: and corresponding the pictures shot by the shooting component to the lanes.
The lane marking is carried out on the picture shot by the shooting component, and the lane corresponds to the picture area, so that the lane signal corresponding to the lane corresponds to the picture area. And the pictures shot by the shooting component are cut according to the corresponding lanes, and the cut pictures are in one-to-one correspondence with the lanes through lane number dividers.
As shown in fig. 2, the present invention also discloses a radar speed measurement monitoring system, which includes:
embedded compound appearance 100 of radar monitoring, embedded compound appearance of radar monitoring includes embedded compound appearance of radar speed measurement, network transmission subassembly, the compound appearance of embedded radar speed measurement includes radar speed measurement subassembly 101, shoots subassembly 102 and photo processing storage component 103, just the radar speed measurement subassembly transmission high frequency radar wave, high frequency radar wave produces the reflection after touchhing the object of removal, and the radar speed measurement subassembly is received the back wave, shoots the subassembly through the radar wave drive and shoots the subassembly and take a picture.
A photo processing storage component 103 which receives the photo taken by the photographing component, converts the photo into data information and then stores the data information;
and the network transmission component 104 receives the data information of the photo processing storage component and transmits the data information.
And the back-end processing platform 200 is used for receiving the data information of the network transmission component, processing and storing the data information, cutting the picture according to the lane, and corresponding the cut picture with the lane.
The invention discloses an embedded radar monitoring combination instrument, which comprises a camera and a radar detector, wherein the camera is activated to capture after the radar detector detects a vehicle, the adjacent radars can realize the bidirectional mutual transmission of the information of the same target vehicle, the transmitted information comprises the dynamic information, the characteristic information and the unique ID number identity information in the whole radar sensing system, the radar system can realize the bidirectional transmission of the information of any target vehicle in a detection area between the adjacent radars, the continuous transmission length of a plurality of radars is not less than 3 kilometers, and the integral transmission success rate of the information of the vehicle in a 3 kilometer section is not less than 99.9 percent.
The radar detection instrument is equipped with 1 CAN mouth, 32 pulse signal mouths, 4 RJ45 interfaces, 2 RS485 mouths, 2 RS232 mouths. The target vehicle information comprises information such as real-time speed, longitude and latitude, lane information, vehicle type classification, motion direction, acceleration, unique-ID number and the like. The target vehicle characteristic information includes: one or more of information such as license plate, color, vehicle type, vehicle series, brand and the like. The attribute categories include: supporting lane changing, reverse running, line pressing, non-maintaining of safe vehicle distance, plugging and illegal parking regulation; the functions of monitoring congestion, pedestrians, roadblocks, construction, object throwing, non-deceleration of zebra crossings, average speed, continuous lane changing, snake-shaped lane changing and road occupation of a cart are supported; and the high-temperature early warning function of the vehicle is supported. Further comprising a memory, said memory storing information including: radar number, lane number, time zone number, multiplying factor, headway, average speed, long average speed, medium average speed, short average speed, medium average speed, long average speed, ultra-long average speed, traffic flow per unit time, long traffic flow per unit time, medium traffic flow per unit time, short traffic flow per unit time, total occupancy, long occupancy, medium occupancy, short occupancy. The lane information comprises one or more of a road junction number, a lane angle and a lane starting position. The vehicle dynamic information comprises vehicle speed, flow, vehicle occupancy information, lane and line pressing detection and vehicle head distance information, and the vehicle speed information comprises: the independent speed of each vehicle; average vehicle speed; a total average velocity; average speed of each vehicle type; the traffic information includes: the traffic flow per unit time; total flow rate; the unit time flow of each vehicle type; the vehicle occupancy information includes: the total occupancy rate; and the occupancy rate of each vehicle type.
The invention can upgrade the existing traffic signal machine control technology through a radar depth algorithm, and provides more scientific management for the modernization of smart cities. In order to solve the traffic problems of overlong crossing queuing, unbalanced road network density and the like, the traffic flow radar uses a detection structure of multi-section and regional monitoring to count and track road section data and vehicle tracks, processes output radar detection target vehicle information, traffic information such as flow statistics and the like, dynamically adjusts the green signal ratio through real-time road surface information, and improves the utilization efficiency of green lights. The complexity of traffic flow information data processing is reduced. The service efficiency of the traffic information management system based on radar detection and the visualization degree of traffic flow information monitoring are improved, and monitoring and management are facilitated.
Moving object of the invention: vehicles, pedestrians, sprinkles, etc. A stationary target: obstacles, etc.
Target vehicle information: real-time speed, longitude and latitude, lane information, vehicle type classification (hitting, middle and small), motion direction, acceleration, unique-ID number and the like.
Target vehicle characteristic information (after being fused with high-definition snapshot camera data): license plate, color, vehicle type, vehicle series, brand and other information. Application scenarios: the method comprises the following steps of abnormal traffic event detection (parking, retrograde motion, congestion, overspeed, slow motion, pedestrians, foreign matters and the like), region and traffic data acquisition, traffic state detection, road condition state detection, vehicle lane level tracking, license plate inquiry, positioning and monitoring track backtracking, vehicle behavior analysis and the like.
The mutual transmission of the information of the same target vehicle between the adjacent radars can be realized, the transmitted information comprises the dynamic information and the characteristic information of the vehicle and the unique-ID number identity information in the whole radar sensing system, and the mutual transmission success rate of the information of the same target vehicle between the adjacent radars is 98 percent.
The radar sensor is linked with the gate recognition unit, vehicles can be tracked and positioned, synchronous triggering snapshot can be realized on the same target vehicle, vehicle characteristic information is obtained, the success rate of synchronous triggering snapshot is 99%, dynamic information obtained by the radar sensor of the same target vehicle and vehicle characteristic information obtained by the gate recognition unit can be realized
Fusing and binding; the binding accuracy rate of the dynamic information and the characteristic information of the same target vehicle is 99%.
The intelligent radar control box is used for controlling a special radar to realize a traffic information detection function, simultaneously provides network camera switching management and intelligent control and management of other peripheral equipment, and can comprehensively know tasks to be completed and functions which can be achieved by the intelligent radar control box through the requirement specification.
The intelligent radar control box outputs traffic information such as flow, speed and snapshot starting information to the outside, and the output information needs to be encoded according to a certain protocol format and output through an RS485 interface.
The intelligent radar control box can perform centralized control management on related peripheral equipment such as radars, network cameras and the like through intelligent control system hardware in the box, is convenient for a user to install, debug, configure and use the intelligent radar control box on site, provides certain subsequent function upgrading, continuously integrates other related hardware and the like, and achieves intelligentization and networking of a radar-based traffic information detection function.
According to the requirements of the intelligent detection function task of the traffic information based on the radar, the hardware system target of the intelligent radar control box is formulated as follows:
the interface is simple and convenient.
The control box is used as a control center and is connected with peripherals such as a radar, a network camera and the like.
The control box supplies power to the radar and the network camera and manages the power.
The control box outputs the related traffic information to the outside through a hardware interface.
The control box is connected with a remote control center through a network interface, and is convenient for a user to carry out task management and information acquisition.
And the remote control center configures and manages the radar through the intelligent radar control box and collects radar information.
The control box processes the radar data and calculates and collects related traffic information according to the road plan set by the user.
The control box provides history information storage and query retrieval functions.
The system runs stably, safely and reliably.
A storage device:
the specific capacity and interface of the SD/SDHC/SDXC or on-board memory are determined according to the sizes of the circuit board and the shell.
The radar parameter setting and function selection comprises the following steps:
the mode of the detection is such that,
radar power;
detecting the distance;
a radar ID;
sensitivity;
setting polygonal filtering;
other relevant function settings used;
the traffic rules include: setting lane planning; vehicle contour size classification: super-long, medium and short vehicle models; line pressing and lane changing rules; traffic measurements (average on-demand lane statistics) include: speed measurement: the independent speed of each vehicle; average vehicle speed; a total average velocity; average speed of each vehicle type; flow rate: the traffic flow per unit time; total flow rate; the unit time flow of each vehicle type; vehicle occupancy: the total occupancy rate; the occupancy rate of each vehicle type; lane and line ball detect, locomotive interval, snapshot signal output: outputting a pulse signal; time information: and (4) data storage time.
The camera requires that: managing camera configuration; forwarding the camera video; the identification setting and recording of the single-camera video compression code rate 32 k-16 Mbps equipment number and the like comprises the following steps: radar equipment number, camera equipment number, control box equipment number, intersection and lane information identification. Interface unit should the former control box interface space of make full use of place the interface terminal, secondly can utilize two trompil departments on the panel, should consider that the wiring is convenient and pleasing to the eye, if meet the usage space conflict, can consider to simplify secondary function, if cut down debugging interface etc.. RS485 communication: and outputting information, connecting a snapshot camera and the like. A network port: and (3) outputting: connecting a host; inputting: and connecting the camera. The CAN comprises a connection radar, a pulse: snapshot signal output, USB interface: the method is used for debugging the equipment.
The system functions include: resetting: long press and resume factory setting, the button resets firmly, and software resets, debugging upgrading etc: remote debugging: and (3) borrowing the internet access, and locally debugging: RS232 or USB interface, board carries hard and resets and the boot control, and human-computer interaction utilizes the box panel as far as possible: 3 positions of the LEDs are selectable and used as status or power indication, and the Key can be used for setting a dial switch as output if needed, and the function is not necessary and is determined according to actual needs in the development process.
The radar refresh period is 72ms, the speed measurement range: the detected target number is based on the actual maximum performance, and the intelligent radar control box CAN support processing of a 500Kbps CAN bus full rate and output a target signal of the detected vehicle by considering the CAN bus rate upper limit used by the radar. The data transmission rate of the radar CAN interface supports 500K bps, the input interface of the network camera is a hundred-mega Ethernet, and the video compression code rate is 32K-16 Mbps. The output interface of the host is a hundred mega Ethernet, and supports the superposition sum of the full load rate of the video stream and the radar signal.
In the design of panel state indication, the operation is simple and clear and easy. The appearance is also reasonable. After the power supply is connected, a power-on state indication is needed, the box should have a working state breathing lamp to indicate that the system is normally operating and various devices are connected, and a connection normal state indication including the states of the power supply and the communication interface should be provided. In general, the user interface of the system should be reliable, simple, easy to learn and use.
Before the system runs, the following signals need to be accessed into the hardware of the control box: 1.12V power input; connect the radar wiring, including CAN interface and radar power supply, the wiring of network camera, including network interface and camera power supply, if there is the needs, CAN insert snapshot trigger signal. The system function and the network interface can be connected with a host computer for debugging and testing through the network interface, the host computer can carry out function upgrading on the control box, and the host computer can carry out system function setting on the control box, including factory setting restoration, hard reset, soft reset and the like. The network interface supports parameter resetting such as IP addresses. Peripheral hardware faults of the equipment (such as overlarge power input fluctuation, power consumption of a radar or a network camera exceeds a normal range, electrical abnormality of a peripheral access signal and the like) can cause the consequences that an intelligent radar control box cannot normally operate and the like, resources of a system are insufficient, a network transmission channel is blocked, or a peripheral access signal bug can cause the control box not to normally operate and the system of the control box to possibly crash, the intelligent radar control box supports automatic recovery of normal operation after the external environment is normal, and the intelligent radar control box supports recovery of normal operation through hardware reset in a debugging stage or a new function testing stage. The internal errors generated by the control box in the operation process can be automatically logged by the system for the developer to review, and the errors caused by non-data transmission can be researched by the system developer through analyzing the error log.
The control box must operate strictly according to the set security authority mechanism and effectively prevent unauthorized users from entering the system. The above-mentioned functional and performance requirements of the control box are sometimes limited by radar or other hardware conditions, and not all functions can be implemented in the same hardware system,
the intelligent radar control box is limited by specific radar models, such as field angle, sensitivity, resolution, precision and the like, and has use function limitation and performance upper limit, and the above function and performance requirements of the intelligent radar control box are based on the basis, and if conflicts exist, the actual function and performance of the radar or other hardware are taken as the standard.
The traffic flow information management system software realizes the traffic information detection function by connecting a special radar through an intelligent radar control box, and determines the system performance requirement, the system operation support environment requirement, the user function, the interface requirement and the like according to the function requirement analysis of the traffic flow information management system based on radar detection. All the above steps lay a good foundation for the next operation.
Various data such as traffic information and the like generated by the radar detection box are processed in a unified mode, data access and data processing are prevented from being repeated, and complexity of data processing such as traffic flow information and the like is reduced. The system not only frees the end user from complicated and specific radar hardware setting and use, but also improves the use efficiency of the traffic information management system based on radar detection, improves the visualization degree of traffic flow information monitoring, and facilitates the monitoring, query and management of the user. And the target detection data, the vehicle speed measurement and other related road traffic information are transmitted to the traffic flow information management system software by the intelligent radar control box through network connection.
The invention needs to be capable of carrying out connection and configuration management on related radars, network cameras and the like through the intelligent radar control box, so that a user can conveniently carry out real-time monitoring and statistical management on traffic flow information, and the intellectualization and networking of a radar-based traffic information detection function are realized.
The peripheral equipment is connected through the network interface, and other signal connections are not needed. And the intelligent radar control box is used as a peripheral connection center to configure and manage peripherals such as a radar, a network camera and the like. The traffic flow information management system software reads the relevant traffic information detected by the radar. And the traffic flow information management system software configures the radar according to the road plan set by the user. And adjusting the road view angle position and the like in the radar monitoring window according to the network camera video monitoring. The traffic flow information management system software provides instant information display and statistical information display for traffic flow and the like. Can be used in combination for a plurality of intelligent radar control boxes at the intersection. The system runs stably, safely and reliably.
Radar: the related signal millimeter wave radar is connected with the intelligent radar control box;
the traffic flow information management system software has the following specific functions:
and (3) control management: connection and configuration management of the intelligent radar control box: the connection use such as radar all goes on through intelligent radar control box, and the system need be connected intelligent radar control box before the normal use, can set up and monitor the control box after connecting successfully, if to system version, storage space surplus, interface state, peripheral hardware access, environmental status etc. look over to and carry out remote upgrade management.
Radar connection and configuration: the radar needs to be connected and set before being used so as to ensure that the radar is used in a specified mode and can provide a required detection function, and the setting parameters comprise: monitoring mode, radar power, detection distance, radar ID, sensitivity, and various parameters related to the externally open interface provided by the filtering setting energy radar.
The camera is connected and set up: this function needs the camera cooperation, if this type camera is fit for adopting former factory monitoring platform software, then this software need not provide the connection and set up the management. The normal connection parameters include an IP address, a port number, a monitoring protocol, and the like.
Radar detection imaging: displaying a radar detection target; and dynamically displaying the instant information of the detected target. Displaying traffic statistical information (mainly means statistics according to each lane): corresponding to the traffic statistical information related to the lane. Setting dynamic properties: different dynamic properties are displayed in different colors. The color may be preset by default and the user may choose to display or mask certain types of dynamic objects. Target vehicle information display setting: the user may choose to display or mask certain target vehicle information. Setting road and lane information: setting or viewing road and lane information. Lane angle setting and adjustment (this function is set and commissioned by party a before delivery to the end user, no end user adjustment is required). Setting traffic statistical information: setting a statistical period, and displaying or shielding specific information. Network camera video monitor window: the software can play the output video stream of the network camera supporting the open interface standard, and is convenient for a user to compare the radar detection target vehicle information. And (3) radar detection target superposition setting: vehicle information detected by a radar is superposed to a camera video, and dynamic attributes of targets are distinguished by setting different graphic information, so that original video images are required not to be shielded and not to be excessively influenced. And if the video signal is played and displayed by adopting a camera original factory platform, determining whether the radar detection target superposition function is used according to the actual effect. Connection state and configuration of the intelligent radar control box: control box IP address and port number, control box equipment number, control box connection status, control box status display: ambient and internal temperature (determined by the specific conditions of the control box), input power monitoring and output power monitoring (which can also be replaced by independent display of the state of each relevant peripheral), other state display and setting, radar connection state and configuration: radar equipment number, radar connection state, radar voltage and electric current, radar setting: detection mode, radar power, detection range, radar ID (communication related), sensitivity, polygon filtering settings, other related function settings used. Camera connection state and configuration: camera IP address and configuration port, camera equipment number, camera connection status, camera voltage and electric current, camera monitoring protocol and relevant port (open standard protocol), the relevant setting of camera video broadcast: resolution, frame rate. Radar detection imaging display window: target dynamic attribute color setting: the states are required to be clearly distinguished by broad categories and to be tone-consistent with the entire software system, and the attribute categories are as follows: motion, stationary, incoming, candidate stationary, cross stationary, unknown, cross motion, motion stopped, may choose to display or mask certain attribute categories in a window; target size legend setting: according to the large, medium and small vehicle types, different legends are used for displaying and distinguishing, and a certain vehicle type category can be displayed or shielded in a window.
Displaying and setting the target instant message: each target ID, each target speed, each target RCS, each target type, each target locomotive spacing, each target naked spacing, whether the target produces line pressing or lane changing, can select to show or shield certain information in the window to make things convenient for the user to focus on observing certain type of target vehicle information, notes: the RCS, the vehicle type category, the vehicle head interval and the naked interval are mutually associated, certain information is specifically displayed, and debugging and determining are needed according to radar installation and actual performance.
Displaying and setting lane information: road junction number, lane angle, lane starting position. The above information is partially or completely set and is not open to the end user, only debugging setting is provided during radar installation to support simultaneous display of at most four-direction lanes, when the radar detection system works in the mode, the video playing window is not opened due to limitation of window size and display effect, and only radar detection target imaging and lane information windows are arranged on the interface.
Displaying and setting lane traffic statistical information: and statistical information such as statistical period setting, vehicle type, flow, average speed, occupancy rate, spacing and the like.
The network camera video monitoring window displays and sets: whether the radar detection target vehicle information is superposed or not, the radar detection target vehicle information representation mode and the radar detection target vehicle information transparency are used for conveniently checking certain information, or under the condition that a camera original factory monitoring platform is selected to play videos, the window can be set to only display the radar detection target vehicle information, and video monitoring is not played.
As shown in fig. 4, the radar controller connection status and configuration: the controller IP address and port number, the equipment number, the connection state, the state display environment and the internal temperature (determined according to the specific conditions of the controller), the input power supply monitoring, the output power supply monitoring (which can be independently displayed and replaced by the state of each relevant peripheral), and other state display and setting.
Radar connection status and configuration: radar device number, connection status, radar voltage and current. Radar setting: detection mode, radar power, detection range, radar ID (communication related), sensitivity, polygon filtering settings, other relevant function settings used. It can monitor the projectile 110 and also perform lane change line snapping 120.
As shown in fig. 5, the connection state and arrangement of the cameras (200W-900W): camera IP address and configuration port, camera equipment number, connection state, voltage and current, monitoring protocol and related ports. Video playing related setting: resolution, frame rate
Target dynamic attribute color setting: the states are required to be clearly distinguished by broad categories, and the hue compatibility attribute categories with the whole software system are as follows: supporting lane changing, reverse running, line pressing, non-maintaining of safe vehicle distance, plugging and illegal parking regulation; the functions of monitoring congestion, pedestrians, roadblocks, construction, object throwing, non-deceleration of zebra crossings, average speed, continuous lane changing, snake-shaped lane changing and road occupation of a cart are supported; and the high-temperature early warning function of the vehicle is supported. It can monitor the projectile 110 and also perform lane change line snapping 120.
As shown in fig. 5, the connection state and arrangement of the cameras (200W-900W): camera IP address and configuration port, camera equipment number, connection state, voltage and current, monitoring protocol and related ports.
Video playing related setting: setting the color of the resolution and frame rate target dynamic attribute: the states are required to be clearly distinguished by broad categories, and the hue compatibility attribute categories with the whole software system are as follows: supporting lane changing, reverse running, line pressing, non-maintaining of safe vehicle distance, plugging and illegal parking regulation; the functions of monitoring congestion, pedestrians, roadblocks, construction, object throwing, non-deceleration of zebra crossings, average speed, continuous lane changing, snake-shaped lane changing and road occupation of a cart are supported; and the high-temperature early warning function of the vehicle is supported. It can monitor the projectile 110 and also perform lane change line snapping 120.
As shown in fig. 6, the connection state and arrangement of the cameras (200W-900W): camera IP address and configuration port, camera equipment number, connection state, voltage and current, monitoring protocol and related ports. Video playing related setting: resolution, frame rate
Target dynamic attribute color setting: the states are required to be clearly distinguished by broad categories, and the hue compatibility attribute categories with the whole software system are as follows: supporting lane changing, reverse running, line pressing, non-maintaining of safe vehicle distance, plugging and illegal parking regulation; the functions of monitoring congestion, pedestrians, roadblocks, construction, object throwing, non-deceleration of zebra crossings, average speed, continuous lane changing, snake-shaped lane changing and road occupation of a cart are supported; and the high-temperature early warning function of the vehicle is supported. It can monitor the projectile 110 and also perform lane change line snapping 120.
As shown in fig. 7, the detection data: radar number, lane number, time zone number, multiplying factor, headway, average speed, long average speed, medium average speed, short average speed, medium average speed, long average speed, ultra-long average speed, traffic flow per unit time, long traffic flow per unit time, medium traffic flow per unit time, short traffic flow per unit time, total occupancy, long occupancy, medium occupancy, short occupancy.
The local time when the data is stored, the time when the device sends the data.
The present embodiment includes an apparatus comprising: front-end equipment: and snapping at an overspeed of 24-25 m at a bayonet. And simultaneously measuring the distance between 0 and 1200 meters of the traffic flow. The embedded radar detection combination instrument comprises one embedded radar detection combination instrument, two flat narrow-wave radars (with the frequency of 24.150GHz, the legal law enforcement of radar speed, and according with the requirements of national metering laws), and three stroboscopic lamps. Traffic event detection front end: one vehicle flow multi-target distance measuring radar and one vehicle flow radar controller.
The existing traffic signal machine control technology can be upgraded through a radar depth algorithm, and more scientific management is provided for modernization of smart cities. In order to solve the traffic problems of overlong crossing queuing, unbalanced road network density and the like, the traffic flow radar uses a detection structure of multi-section and regional monitoring to count and track road section data and vehicle tracks, processes output radar detection target vehicle information, traffic information such as flow statistics and the like, dynamically adjusts the green signal ratio through real-time road surface information, and improves the utilization efficiency of green lights. The complexity of traffic flow information data processing is reduced. The service efficiency of the traffic information management system based on radar detection and the visualization degree of traffic flow information monitoring are improved, and monitoring and management are facilitated.
As shown in fig. 8 and 9, the system is used for multi-target distance measurement of traffic flow, and includes a road traffic flow detection radar, which detects vehicles moving or stationary in up to 12 lanes by using the millimeter wave distance measurement principle, realizes real-time detection of information such as traffic flow, occupancy, average speed, vehicle type and the like in 12 lanes, and transmits the information to a related traffic information platform through a communication interface, so as to provide required traffic information for implementing intelligent traffic management, and maximally utilize the traffic capacity of the existing road. The embodiment can be applied to vehicle traffic information acquisition of expressways, urban expressways, crossroads and the like. It is possible to distinguish the wire-pressed running vehicle as being detected only as one vehicle. And automatically shielding the obstacles on the detection section.
The invention has the following advantages:
1) the installation is convenient, and the maintenance is simple. The side direction is arranged on the vertical rod at a certain height on the road side, and the traffic is not required to be interrupted during installation and maintenance; the radar is taken down during maintenance;
2) up to two-way 12 lanes can be detected simultaneously; the distance between the vertical rod and the first detection lane can be as close as 0 meter;
3) the single lane instantaneous speed and the section average speed can be provided;
4) the performance is also excellent under severe weather conditions. The microwave radar is not influenced by wind, rain, fog, hail and the like;
5) accurately detecting low-speed running vehicles and static vehicles, and automatically shielding obstacles (such as guardrails, isolation green belts and the like) on the detection section;
6) effectively solve the vehicle line ball problem of traveling: when the vehicle does not run on the defined lane, the traffic data of the vehicle can be judged through logic, and the vehicle cannot be judged to be two vehicles or cannot be detected;
7) the lane automatic identification function: the lane dividing device has an automatic lane dividing function and can accurately divide a detected lane; and the device has the function of combining lane automation and manual operation, and is suitable for various complex environments.
Number of lanes it can be used to monitor: a bidirectional 8 lane, which can detect information including: the vehicle flow, the time occupancy, the head interval, the classification of vehicle types, the percentage of vehicles following, the site vehicle speed, the driving direction and the driving lane.
As shown in fig. 9, the present invention further discloses a vehicle radar information system, which includes an embedded radar monitoring complex instrument 100, a radar cooperation signal machine 400, a back-end processing platform 200, and a middle-end server 300, wherein each part of the system transmits signal data through an optical fiber network 500.
Data acquisition and classification of traffic volume survey stations:
the motor vehicle typing function:
motor vehicle traffic flow data collection
| Device classification | Direction of partial travel | Lane dividing device | Accuracy of measurement | Type of motor vehicle | |
| Class I | √ | √ | ≥98％ | √ |
Motor vehicle speed data acquisition
Referring to fig. 10-12, the embedded radar monitoring combination instrument 1 includes an upper casing 21 and a lower casing 22, a cavity is formed between the upper casing 21 and the lower casing 22, a camera 3 is disposed in the cavity, the front end of the cavity droops to place a radar detector 4, a window 23 is disposed at the front end, and the camera 3 is aligned with the window 23 for shooting.
The circuit board 5 is located the cavity, and lower casing 22 bottom is equipped with a plurality of connecting terminal 6, and connecting terminal is connected to the circuit board, and the circuit board is connected with camera 3 and radar 4. The connecting terminal can be used for connecting flash lamps, flat narrow-wave radars and the like on other lanes outside. The relevant lane radar detects the vehicle, and the signal sends for circuit board 5 through corresponding connecting terminal 6, perhaps the radar detection ware of itself directly sends the signal for the circuit board, activates camera 2, and circuit board 5 sends the signal for the flash light through corresponding connecting terminal simultaneously, and when shooing, the flash light is opened.
The camera of the invention can be activated by a plurality of radar detection instruments, such as radar detection instruments in an embedded radar monitoring complex instrument, or radar detection instruments additionally arranged, such as an external flat narrow-wave radar can be respectively connected to the camera 3 through a plurality of connecting terminals 6 and a circuit board, referring to fig. 13, each radar detection instrument is respectively endowed with a radar access number code, such as a radar No. 01-04, after an object is detected, a five-byte data model is formed, and the five-byte data sequentially comprises a guide word, a radar access number, a maximum speed (high speed), a minimum speed (low speed) and a last check bit. The circuit board receives the five-byte data model, analyzes the meaning represented by each byte, and activates a camera and/or segments a shot image according to the analysis result.
Referring to fig. 12, a hard trigger button and a display are further provided at the rear side of the drooping portion of the embedded radar monitoring complex 1, and after the hard trigger button is activated, the radar detects the vehicle speed and transmits the speed data to the display. The device can be used for conveniently testing the effectiveness and the accuracy of the equipment.
The embodiments of the present invention have been described in detail, but the embodiments are merely examples, and the present invention is not limited to the embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.
Claims (10)
1. The utility model provides an embedded compound appearance of radar monitoring, a serial communication port, including the camera, the radar detection instrument, wherein, the radar detection instrument activates the camera and takes a candid photograph behind detecting the vehicle, can realize the two-way mutual transmission to same target vehicle information between adjacent radar, the information of transmission includes vehicle dynamic information, unique ID serial number identity information among characteristic information and the whole radar perception system, radar system can realize two-way transmission between adjacent radar to arbitrary target vehicle information in the detection zone, the length of lining up is no less than to the continuous transmission length of a plurality of radars.
2. The embedded radar monitoring complex instrument according to claim 1, wherein the radar detection instrument is provided with 1 CAN port, 32 pulse signal ports, 4 RJ45 ports, 2 RS485 ports and 2 RS232 ports.
3. The embedded radar monitoring complex instrument as recited in claim 1, wherein the target vehicle information includes information such as real-time speed, longitude and latitude, lane information, vehicle type classification, moving direction, acceleration, unique-ID number, and the like;
the characteristic information includes: one or more of information such as license plate, color, vehicle type, vehicle series, brand and the like; the attribute categories include: supporting lane changing, reverse running, line pressing, non-maintaining of safe vehicle distance, plugging and illegal parking regulation; the functions of monitoring congestion, pedestrians, roadblocks, construction, object throwing, non-deceleration of zebra crossings, average speed, continuous lane changing, snake-shaped lane changing and road occupation of a cart are supported; and the high-temperature early warning function of the vehicle is supported.
4. The embedded radar monitoring complex of claim 1, further comprising a memory storing information comprising: radar number, lane number, time zone number, multiplying factor, headway, average speed, long average speed, medium average speed, short average speed, medium average speed, long average speed, ultra-long average speed, traffic flow per unit time, long traffic flow per unit time, medium traffic flow per unit time, short traffic flow per unit time, total occupancy, long occupancy, medium occupancy, short occupancy.
5. The embedded radar monitoring complex of claim 3, wherein the lane information comprises one or more of a road number, a lane angle, a lane start position.
6. The embedded radar monitoring complex meter of claim 3, wherein the vehicle dynamic information comprises vehicle speed, flow, vehicle occupancy information, lane and line pressure detection, and vehicle headway information, and the vehicle speed information comprises: the independent speed of each vehicle; average vehicle speed; a total average velocity; average speed of each vehicle type; the traffic information includes: the traffic flow per unit time; total flow rate; the unit time flow of each vehicle type; the vehicle occupancy information includes: the total occupancy rate; and the occupancy rate of each vehicle type.
7. A traffic flow radar information system is characterized by comprising the embedded radar monitoring composite instrument, a radar matching signal machine, a rear-end processing platform and a middle-end server, wherein all the parts transmit signal data through an optical fiber network.
8. The traffic radar information system of claim 7, wherein the radar is connected to a signal host to control signal lights for vehicle clearance and to control sidewalk traffic signal transformation, while supporting traffic information prediction: the traffic information screen displays traffic flow information; the radar can simultaneously output forward 1-8 lane numbers and reverse 1-8 lane numbers, and the total number of the lanes is 16. The existing traffic signal machine control technology can be upgraded by a radar depth algorithm. The lower the average speed of the radar, the longer the vehicle length, and the longer the time for setting the traffic lights. The higher the average speed of the radar is, the shorter the length of the vehicle is, and the shorter the time for setting the traffic light is. The average speed of the synchronous turning road is low, the lower the speed is, the longer the vehicle length is, and the time for setting the traffic light is longer. The higher the average speed of the synchronous turning road is, the shorter the length of the vehicle is, and the shorter the time for setting the traffic light is. And simultaneously, the red and green signal conversion of the sidewalk is controlled.
9. The traffic radar information system according to claim 7, wherein camera connection status and configuration: camera IP address and configuration port, camera equipment number, connection state, voltage and current, monitoring protocol and related ports. Video playing related setting: resolution, frame rate.
10. The traffic radar information system of claim 7, wherein the target dynamic property color sets: the states are required to be distinguished according to large classes and are compatible with the tone of the whole software system;
the attribute categories are as follows: supporting lane changing, reverse running, line pressing, non-maintaining of safe vehicle distance, plugging and illegal parking regulation; the functions of monitoring congestion, pedestrians, roadblocks, construction, object throwing, non-deceleration of zebra crossings, average speed, continuous lane changing, snake-shaped lane changing and road occupation of a cart are supported; and the high-temperature early warning function of the vehicle is supported.
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